On this page you will find instructions on how to add validation Nodes to your model and on how to validate a Workspace or Model.
Adding Validation Nodes
Adding a validation node to your model gives you the opportunity to automatically check for invalid settings, for example a product that has no price associated or negative sales volume.
To add a validation node you either create it directly of the menu 'Add Nodes' as validation node or change it in 'node editor' → 'show validation settings' later on.
Validation nodes have to yield 0 as value. If they don't you will receive an validation error after validating the scenario manager.
Validation nodes are most useful when your formula tends to have errors which don't lead to errors in the model validation.
Let's say we want to check for our value of the node 'Volume' to be always positive.
We add a validation node 'PositiveVolume'.
|PositiveVolume||IF('Volume'>=0, 0, 'Volume')|
We can achieve the same result using the MIN command.
Now we move to the scenario manager and validate our workspace like shown above. We either get a positive feedback for 'Volume'>=0...
...or a validation warning for negative values with a description and location of the problem.
Instead of validating the workspace you can also directly validate your Model. To do so, you can use the "Validation Node Checkup" button at the top of the Model Editor.
The following menu is similar to the one you encounter when validating workspaces. Once you "Validate now" you will either receive a message that the validation was successful or a validation warning detailing the issue. Please keep in mind that you will only see warnings regarding Validation Nodes when validating the Model.